LD3985M30R
ActiveULTRA LOW DROP-LOW NOISE BICMOS VOLTAGE REGULATORS LOW ESR CAPACITORS COMPATIBLE
LD3985M30R
ActiveULTRA LOW DROP-LOW NOISE BICMOS VOLTAGE REGULATORS LOW ESR CAPACITORS COMPATIBLE
Technical Specifications
Parameters and characteristics for this part
| Specification | LD3985M30R |
|---|---|
| Control Features | Enable |
| Current - Output | 150 mA |
| Current - Quiescent (Iq) | 150 çA |
| Current - Supply (Max) [Max] | 250 µA |
| Mounting Type | Surface Mount |
| Number of Regulators | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 C |
| Output Configuration | Positive |
| Package / Case | SOT-753, SC-74A |
| Protection Features | Over Temperature, Over Current |
| PSRR [Max] | 60 dB |
| PSRR [Min] | 50 dB |
| Supplier Device Package | SOT-23-5 |
| Voltage - Input (Max) [Max] | 6 V |
| Voltage - Output (Min/Fixed) | 3 V |
| Voltage Dropout (Max) | 0.1 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 0.60 | |
| 10 | $ 0.54 | |||
| 25 | $ 0.51 | |||
| 100 | $ 0.42 | |||
| 250 | $ 0.39 | |||
| 500 | $ 0.35 | |||
| 1000 | $ 0.32 | |||
| Digi-Reel® | 1 | $ 0.60 | ||
| 10 | $ 0.54 | |||
| 25 | $ 0.51 | |||
| 100 | $ 0.42 | |||
| 250 | $ 0.39 | |||
| 500 | $ 0.35 | |||
| 1000 | $ 0.32 | |||
| N/A | 24368 | $ 0.79 | ||
| Tape & Reel (TR) | 3000 | $ 0.32 | ||
| Newark | Each (Supplied on Cut Tape) | 1 | $ 0.59 | |
| 10 | $ 0.46 | |||
| 25 | $ 0.45 | |||
| 50 | $ 0.43 | |||
| 100 | $ 0.42 | |||
| 250 | $ 0.41 | |||
| 500 | $ 0.41 | |||
| 1000 | $ 0.35 | |||
Description
General part information
LD3985 Series
The LD3985 provides up to 150 mA, from 2.5 V to 6 V input voltage. The ultra low drop voltage, low quiescent current and low noise make it suitable for low power applications and in battery-powered systems. Regulator ground current increases slightly in dropout only, prolonging the battery life. Power supply rejection is better than 60 dB at low frequencies and rolls off at 10 kHz. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits. Shutdown logic control function is available, this means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. The LD3985 is designed to work with low ESR ceramic capacitors. Typical applications are in mobile phones and similar battery-powered wireless systems.Input voltage from 2.5 V to 6 VStable with low ESR ceramic capacitorsUltra low-dropout voltage (60 mV typ. at 150 mA load, 0.4 mV typ. at 1 mA load)Very low quiescent current (85 µA typ. at no load, 170 µA typ. at 150 mA load; max.1.5 µA in OFF mode)Guaranteed output current up to 150 mAWide range of output voltage: 1.22 V; 1.8 V; 2.5 V; 2.6 V; 2.7 V; 2.8 V; 2.9 V; 3 V; 3.3 V; 4.7 VFast turn-on time: typ. 200 µs [CO= 1 µF, CBYP= 10 nF and IO= 1 mA]Logic-controlled electronic shutdownInternal current and thermal limitOutput low noise voltage 30 µVRMSover 10 Hz to 100 kHzSVR of 60 dB at 1 kHz, 50 dB at 10 kHzTemperature range: - 40 °C to 125 °C
